DETECTING THE PRESENCE OF ANTIBIOTIC RESIDUE IN MILK SNACKS SOLD TO ELEMENTARY SCHOOL ABSTRACT Ellin Harlia, Yuli Astuti, Eulis Tanti Marlina Faculty Of Animal Husbandry Padjadjaran University The presence of harmful antibiotic residue in milk snacks sold to elementary school students in Tanjungsari Sumedang has obviously violated the food safety regulations, since harmful antibiotic residue can cause serious health and medical problems, such as resistency and allergic on individuals exposed to them. An investigation on “ Detecting The Presence of antibiotic residue in milk snacks sold to elementary school students. Qualitative test after milk was pasteurized using Bacillus subtilis and Staphylococcus aureus as bacteria tester. Finally the result were descriptively analysed. The result of qualitative on milk snacks samples taken from 5 milk vendors shows that the presence of the antibiotic residue is positive. The quantitative test shows the average content of penicillin and tetracycline in the samples collected from vendor A, B, C, D, E and F is less than 0,05 ppm or below the requirements standard of Maximum Residue Limit SNI 2000, they are penicilline 0,1 ppm and tetracycline 0,05 ppm. Key Word : Milk, Residue, Antibiotic INTRODUCTION Snack sold at elementary school this now while is receiving attention, because has on impact on the student health for short time and long time. Its several snack sold for student can will be disturbed healthy among antibiotic residue in milk. Milk as snack sold student in plastic small size in the amount 500 Rupiah. During mastitis case there is still with antibiotic theraphy and dairy farmer hasn’t be faithfull to withdrawl time antibiotic so milk will be content antibiotic residue. Antibiotic residue in milk form problem that come from dairy farmer various KUD at Java Land already was reported by researcher from Balai Penelitian Veteriner (Bahri and Murdiati, 1994). Milk processing by means of pasteurize form manner that general processing was conducted. Its several researcher suggest that hasn’t all antibiotic can broken by heated. Aim Research For understand to which as far as antibiotic residue content in milk snack sold to elementary School by means of Microbiology Test be based on formation clear zone. Research Advantages Result will be hoped can do given advantages practical for dairy farmer in order that pay attention dose and with drawl time antibiotic using. Scientific contribution for food safety development for health student elementary school in order that obtain snack sold that fulfill condition nutrient and free residue. Research Method Research are use case study at milk vendor that sold at elementary school. Trial using Bogaerts and Wolfs Four Plate Test or Frontier Post Test for determine clear zone and determine antibiotic group be based on pH acid and bases (Oka, et all.,1995). Data will be researched in a descriptive and will be comparison with Maximum Limit Residue SNI 2000. Result Result examination penicillin residue using clear zone, will be appeared at Table 1. Table 1. Average Clear Zone Penicillin antibiotic (mm) Average Vendor A Vendor B Vendor C Vendor D Vendor E 7,0 5,8 8,2 7,8 6,8 Standard of Comparison Control Diameter Clear zone (mm) 0,05 ppm 0,10 ppm 0,50 ppm 1,00 ppm 12 13 14 15 Average diameter clear zone from five vendor has it appeared after pasteurize penicillin residue content already fulfill the requirements Standard Maximum Residue Limit SNI 2000 (maximum 0,1 ppm with diameter clear zone 13 mm). Formation clear zone smaller than 12 mm at Table 1, although such penicillin residu there are still in milk after pasteurize, because penicillin residue endure heat temperature. Appropriate with opinion Moats (1988) that for inactivation 100% penicillin residue be needed 1705 minute with temperature 71oC and will faster if temperature that used higher. Examination Tetracyclin Residue Result examination tetracycline residue in milk that sol by vendor at elementary school, will be appeared at Table 2. Table 2. Average Clear Zone Tetracyclin Antibiotic (mm) Vendor A Average 2,8 Vendor B 2,8 Vendor C 3,6 Vendor D Vendor E 2,8 3,5 Standard of Comparison Control Diameter Clear zone (mm) 0,05 ppm 12 0,10 ppm 15 0,50 ppm 17 Table 2. Showed average tetracycline residue broken by pasteurize temperature. From 20 sample milk pasteurize that positif tetracycline residue after under Maximum Residue Limit SNI 2000 (Maximum 0,05 ppm). Diameter clear zone 2 mm or less that is resisten. Diameter clear zone 2-3 mm that is sensitif. Sensitif sample with capacity that high enough if diameter clear zone as big as 3 mm or more (Colins, 1976). Table 2. showed that average diameter clear zone there are sensitive, because temperature pasteurize be able decreased tetracycline residue until milk be permitted for was drunk. Appropriate with opinion Booth (1987) tetracycline residue 5 -10 ppm that in food be able degradation with heated become around 1 ppm. CONCLUSION Penicillin and tetracycline residue be able were detection in milk snack to elementary school student in limit that were permitted for consumption after pasteurize. SUGGESTION Antibiotic residue in milk be needed was attention, although very lower content. If consumption every day will make medical problems because residue characteristic that is accumulative. Supervision using animal medicine must be needed attention so that dairy farmer be faithful to withdrawl time. LITERATURE Buckle dkk .1986. Ilmu Pangan. 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